How to convert complex equation in LabVIEW without mathscript

[UnholyPenguin]

Here is what ChatGPT made for python, you can call a python node in labview, or try and reproduce this code with labVIEW

[alexderjuengere]

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@UnholyPenguin wrote:

Here is what ChatGPT made for python, you can call a python node in labview, or try and reproduce this code with labVIEW

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I suggest to test if that code produces the expected output...

[alexderjuengere]

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@mrdas9820 wrote:

Hello prof,
The blue squares are just to make it easier to group the steps, it is not for code function.

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it looks like you want to use a sequence instead of blue squares... use it so that the local variables are written properly

I don't understand why you use the z*, it looks like you are guessing...

@mrdas9820 wrote:

For this for loop, I am still confused. How is the formula converted into a block diagram?

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identify the input variables you already have

e.g.  Yᵢᵢ, which is an array and it looks like you already have Yᵢⱼ but it is named "ADMITTANCE (yji)"

you have to clearify your name-ing, otherwise this is a waste of time...

[mrdas9820]

Please help me to convert this matlab code into block diagram in LabVIEW:

iter=0;

maxerror=10;

while maxerror >= accuracy & iter <= maxiter

iter=iter+1;

for n = 1:nbus;

YV = 0+j*0;

for L = 1:nbr;

if nl(L) == n, k=nr(L);

YV = YV + Ybus(n,k)*V(k);

elseif nr(L) == n, k=nl(L);

YV = YV + Ybus(n,k)*V(k);

end

end

Sc = conj(V(n))*(Ybus(n,n)*V(n) + YV) ;

Sc = conj(Sc);

DP(n) = P(n) - real(Sc);

DQ(n) = Q(n) - imag(Sc);

if kb(n) == 1

S(n) =Sc; P(n) = real(Sc); Q(n) = imag(Sc); DP(n) =0; DQ(n)=0;

Vc(n) = V(n);

elseif kb(n) == 2

Q(n) = imag(Sc); S(n) = P(n) + j*Q(n);

if Qmax(n) ~= 0

Qgc = Q(n)*basemva + Qd(n) - Qsh(n);

if abs(DQ(n)) <= .005 & iter >= 10 % After 10 iterations

if DV(n) <= 0.045 % the Mvar of generator buses are

if Qgc < Qmin(n), % tested. If not within limits Vm(n)

Vm(n) = Vm(n) + 0.005; % is changed in steps of 0.005 pu

DV(n) = DV(n)+.005; % up to .05 pu in order to bring

elseif Qgc > Qmax(n), % the generator Mvar within the

Vm(n) = Vm(n) - 0.005; % specified limits.

DV(n)=DV(n)+.005; end

else, end

else,end

else,end

end

if kb(n) ~= 1

Vc(n) = (conj(S(n))/conj(V(n)) - YV )/ Ybus(n,n);

else, end

if kb(n) == 0

V(n) = V(n) + accel*(Vc(n)-V(n));

elseif kb(n) == 2

VcI = imag(Vc(n));

VcR = sqrt(Vm(n)^2 - VcI^2);

Vc(n) = VcR + j*VcI;

V(n) = V(n) + accel*(Vc(n) -V(n));

end

end

maxerror=max( max(abs(real(DP))), max(abs(imag(DQ))) );

if iter == maxiter & maxerror > accuracy

fprintf('\nWARNING: Iterative solution did not converged after ')

fprintf('%g', iter), fprintf(' iterations.\n\n')

fprintf('Press Enter to terminate the iterations and print the results \n')

converge = 0; pause, else, end

end

[UnholyPenguin]

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@mrdas9820 wrote:

Please help me to convert this matlab code into block diagram in LabVIEW:

iter=0;

maxerror=10;

while maxerror >= accuracy & iter <= maxiter

iter=iter+1;

for n = 1:nbus;

YV = 0+j*0;

for L = 1:nbr;

if nl(L) == n, k=nr(L);

YV = YV + Ybus(n,k)*V(k);

elseif nr(L) == n, k=nl(L);

YV = YV + Ybus(n,k)*V(k);

end

end

Sc = conj(V(n))*(Ybus(n,n)*V(n) + YV) ;

Sc = conj(Sc);

DP(n) = P(n) - real(Sc);

DQ(n) = Q(n) - imag(Sc);

if kb(n) == 1

S(n) =Sc; P(n) = real(Sc); Q(n) = imag(Sc); DP(n) =0; DQ(n)=0;

Vc(n) = V(n);

elseif kb(n) == 2

Q(n) = imag(Sc); S(n) = P(n) + j*Q(n);

if Qmax(n) ~= 0

Qgc = Q(n)*basemva + Qd(n) - Qsh(n);

if abs(DQ(n)) <= .005 & iter >= 10 % After 10 iterations

if DV(n) <= 0.045 % the Mvar of generator buses are

if Qgc < Qmin(n), % tested. If not within limits Vm(n)

Vm(n) = Vm(n) + 0.005; % is changed in steps of 0.005 pu

DV(n) = DV(n)+.005; % up to .05 pu in order to bring

elseif Qgc > Qmax(n), % the generator Mvar within the

Vm(n) = Vm(n) - 0.005; % specified limits.

DV(n)=DV(n)+.005; end

else, end

else,end

else,end

end

if kb(n) ~= 1

Vc(n) = (conj(S(n))/conj(V(n)) - YV )/ Ybus(n,n);

else, end

if kb(n) == 0

V(n) = V(n) + accel*(Vc(n)-V(n));

elseif kb(n) == 2

VcI = imag(Vc(n));

VcR = sqrt(Vm(n)^2 - VcI^2);

Vc(n) = VcR + j*VcI;

V(n) = V(n) + accel*(Vc(n) -V(n));

end

end

maxerror=max( max(abs(real(DP))), max(abs(imag(DQ))) );

if iter == maxiter & maxerror > accuracy

fprintf('\nWARNING: Iterative solution did not converged after ')

fprintf('%g', iter), fprintf(' iterations.\n\n')

fprintf('Press Enter to terminate the iterations and print the results \n')

converge = 0; pause, else, end

end

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Moving to MATLAB Script Nodes from MathScript Nodes in LabVIEW – Benchmark Examples - NI Community